Carbureter.



No. 767,485. PATENTED AUG. 16, 1904. F. O. MERREGE.

GARBURETER.

APPLICATION" FILED JAN. 5. 1904.

N0 MODEL.

PATENTBD AUG. 16, 1904,

P. G. MERREGE.

GARBURETER.

APPLICATION FILED JAN. 5. 1904.

2 SHEETS-SHEET 2.

E0 MODEL.

Wiigesses H J hr UNTTED STATES Patented August 16, 1904:.

FRANK (J. MERREGE, OF MARINE CITY, MICHIGAN.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 767,485, dated August16, 1904:.

Application filed January 5, 1904. Serial No. 187,805. (No model.)

To (all whmn it may concern:

Be it known that I, FRANK C. MERREGE, a citizen of the United States,residing at Marine City, in the county of St. Clair and State ofMichigan, have invented a new and useful Carbureter, of which thefollowing is a specification.

This invention relates to certain improvements in apparatus forcarbureting air and other gases.

The principal object of the invention is to provide a device forautomatically replenishing the supply of gasolene or other hydrocarbonin the carbureting-chambers.

A further object of the invention is to provide an automaticreplenishing means in which provision is made for forcing the liquidhydrocarbon to the carbureting-chamber in suflicient quantity tomaintain the supply and to permit the excess of liquid to drain back tothe initial supply-tank, to be again pumped to the carbureting-chainberat th next operation.

A still further object of the invention is to provide a carburetingapparatus in which the supply of gasolene to the carbonating-chambers isdependent on the movement of the airpump or movable bell of theaerometer.

A still further object of the invention is to provide a carburetor inwhich the supply of air will be uniform and its pressure constantwithout regard to fluctuations in pressure due to the operation of theair-pumping means.

l/Vith these and other objects in view the invention consists in thenovel construction and arrangement of parts hereinafter described,illustrated in the accompanying drawings, and particularly pointed outin the appended claims, it being understood that various changes in theform, proportions, size, and minor details of the structure may be madewithout departing from the spirit or sacrificing any of the advantagesof the invention.

In the drawings, Figure 1 is a sectional elevation of a carburetingplant arranged and constructed in accordance with the invention.

Fig. 2 is a sectional plan view showing one of thecarbureting-charnbers. Fig. 3 is a detail Referring first to theair-supplying apparatus, the aerometer 1 has a movable bell 2, the loweredge of which is immersed in the liquidcontaining tank 3 in the usualmanner, and from this aerometer leads a pipe 1, through which air maypass to the carbureting-charnbers and the air and gas mixed. To thecentral portion of the tank 3 is secured a rod 5, forming a guide forthe central tube 6, that depends from the bell 2, and in small plantsthis may form the sole guiding means for the bell.

The upper portion of the standard 5 is secured to the bottom of theliquid-containing tank 6, and within the latter is a verticallymovablebell 7, through which air is admitted to the tank 8. At the upper end ofthe tank is a valve 9, carried by a float 10, that will close when thelevel of the liquid is below the normal when the air-bell is full, andthe supply of air therein under pressure results in the lowering of theliquid-level within the bell and its increase between the periphery ofthe bell and the tank and also when the bell is discharging.

The airfrom the bell 7 is conducted to the aerom eter 1 through a pipe11, and in said pipe is arranged a check-valve 12, which will preventback flow of air when the bell 7 is raised during the pumping operation.

The frame of the apparatus carries a cylinder 1 1, in which is atightly-fitting piston 15, that is connected at its lower end to themovable bell 7 by means of a rod 16. The lower end of the cylinder is incommunication with a water-supply pipe 17, through which water underpressure is allowed to flow to act on the piston 15, and thus raise thebell 7. In the pipe 17 is a valve 18, that is operable by a lever 19 andsuitable tappets 20,carried by the bell, the construction of thisportion of the mechanism being that ordinarily employed in pumpingdevices of this class, and the parts are so arranged that when the belldescends one of the tappets will engage the lever 19 and open the valveto allow water to flow into the lower end of the cylinder 14- and raisethe bell 7 to permit air to flow thereinto. hen the bell has completedits upward movement, the second tappet will engage the lever 19 andclose the valve.

At a convenient point adjacent to the airpumping apparatus, andpreferably located under ground for purposes of safety and to preventfreezing, is a tank 22,which may be supplied with gasolene through afeed-pipe 23, having a removable cap 24 arranged above the level of theground. The tank is further provided with a valved vent 25, which isopened to permit the escape of air or gas while the tank is beingfilled. In the upper portion of the tank are two carbureting-chambers 26and 27, which in the present instance are in the form of comparativelyshallow chambers divided into liquid and air passages by means of aspirally-wound partition 28,formed of metal or other material and linedwith burlap or other suitable material. At the central portion of theupper chamber 26 is an overflow pipe or tube 30, through which allliquid hydrocarbon in excess of the quantity required may flow into thelower chamber 27, and from the lower chamber 27 extends a tube 31 topermit excess of hydrocarbon to return to the lower portion of the tank27.

At the under side of the main tank 22 is a vertically-disposed tube 34:,that communicates with the lower portion of the tank 22 through a valveconnection 35, and the valve is connected to a check-valve, which willopen to permit the gasolene to flow into the tube 34, but will closewhen the pressure in tube 34: is in excess of that in the tank. Vithinthe tube 3% is a tube 37, the upper end of which is in communicationwith the upper carbureting-chamber 26. The lower end of this tube isopen and is arranged adjacent to the lower end of the tube 34. From theupper end of the cylinder 14: extends a pipe 38, the lower end. of whichcommunicates with the upper portion of the tube 34, and on top of thecylinder is a flap-valve 40, which will open to admit air to the upperend of the cylinder during the downstroke of the piston 15. When thepiston moves up during the inflow of water, the air admitted to theupper end of said cylinder will be forced down into the pipe 38 into thetube 34 and will cause the liquid of the latter to flow up through tube37 into the upper carbureting-chamber 26 and fiood the lower. Should thesupply be in excess of that required, gasolene will overflow tube 30into carbureting-chamber 27, and the overflow from the latter willreturn through tube 31 to the main supply-tank 22, and from this tankthe tube at will be again replenished.

The air from the pipe 4: enters the lower carbureting-chamber 27 andafter circulating through the spiral or other passage passes up throughthe central opening of chamber 27 and from thence escapes as carburetedair or through the tube A2 to the point of consumption.

It often occurs that carburetcd air is too rich in carbon for thepurpose for which it is to be employed, and to reduce the gas the pipe4: is provided with a branch at, leading to the mixer 43, and said mixeralso communicates with the gas-pipe 42. A valve I?) is introduced in theairpipe 44c in order to control the quantity of air to be mixed with thegas.

At the bottom of the tank 22 is placed a screen 46 in order to preventthe passage of sediment to the tube 3%.

Having thus described the invention, what is claimed is 1. Incarbureting apparatus, a gasolenesupply tank, a carbureting-chamberdisposed at a point above the liquid-level of the tank and having adrainage connection to permit the return of excess gasolene to the tank,an aerometer for supplying air to the carbureting-chamber, a compartmentin con'imunication with said gasolene-supply tank, and means operable onthe movement of the air-bell for forcing a volume of air to saidcompartment and discharging the gasolene therefrom into thecarbureting-chamber.

2. In carbureting apparatus, a gasolenesupply tank, acarbureting-chamber having a drainage connection therewith, acompartment in communication with the tank, a tube connecting thecarbureting-chamber to said compartment, and means for forcing air intothe compartment and causing the flow of gasolene from the compartment tothe carburetingchamber.

3. In carbureting apparatus, a gasolenesupply tank, aearbureting-chamber having a drainage connection therewith, acompartment in communication with the gasolenesupply tank, a check-valvebetween the two, a tube connected at its upper end to thecarbureting-chamber and dipping into the said compartment, and meansoperable by the airsupply apparatus for forcing air into saidcompartment and causing the flow of the gasolene therefrom.

4:. In carbureting apparatus, the combination with a gasolene-supplytank, of a carbureting-chamber arranged on the upper portion of thetank, and having a drainage connection therewith, a compartmentconnected to the tank, a check-valve in the connection between saidcompartment and the tank, a tube connected to the carbureting-chamberand having its lower portion arranged within the compartment, anair-pumping apparatus for forcing air into said compartment.

5. In carbureting apparatus, agasolenesupply tank, acarburting-chamberhaving a with the carbureting-cliamber, and anair-duct drainage connection therewith, an air-pump connecting the upperend of the cylinder to including a movable bell, a cylinder having atthe upper portion of said compartment.

one end a water-inlet, and at the opposite end In testimony that I claimthe foregoing as I5 5 an air-inlet, a piston disposed Within the 05 1-my own I have hereto affixed my signature in inder and connected 1to theair-bell, means for the presence of two witnesses.

supplying water unc er pressure to the lower w end of the cylinder, acompartment in com- FRANK MERREGE' munication with the gasolene-supplytank, a Witnesses: v I check-valvedisposedintheconnectionbetween R. B.WV. BEATTIE,

the two, a tube connecting said compartment FRED. R. BEATTIE.

